CODEWITHSUNDEEP
groovy
Vivi
Vivi

Reputation: 5

Groovy: remove specific characters from end of string

I have a string that might end with multiple \n (the two symbols, not a newline).

How can I remove that from the end of the string?

For example: abc\ndef\n\n should become abc\ndef

Thanks

Upvotes: 0

Views: 2934

Answers (2)

injecteer
injecteer

Reputation: 20699

For such a simple task a simple trim() would suffice:

assert 'abc\ndef' == 'abc\ndef\n\n\n\n'.trim()

Upvotes: 1

ou_ryperd
ou_ryperd

Reputation: 2133

You can do it like this:

s = "abc\ndef\n\n"
assert s.replaceAll(/\n*$/, "") == "abc\ndef"

The section between // looks for any amount of \n and the $ represents the end of the string. So, replace any amount of newlines with nothing else after them, with an empty string.

Upvotes: 2

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